/Engine/Source/Editor/UnrealEd/Classes/Editor/EditorEngine.h
Spawns a PlayFromHere playerstart in the given world if there is a location set to spawn in.
true if spawn succeeded, false if failed. Returns true even if no object was spawned (due to location not being set).
bool SpawnPlayFromHereStart ( [UWorld](API\Runtime\Engine\Engine\UWorld) * World, [AActor](API\Runtime\Engine\GameFramework\AActor) *& PlayerStartPIE )